To study of coiled tubing steel cyclic stress-strain behavior was found that: the same sample at different constant strain rate, the performance of cycle characteristics is different.

研究连续油管钢循环应力-应变行为发现：相同试样在不同的恒应变幅下，表现出不同的循环特征。

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The ancient-dream was finally realized in 1940 when a Russian engineer piloted a strange looking craft of steel tubing with a rotating fan on top.

这个古老的梦想终于在1940年实现了。当时，一名俄罗斯工程师驾驶了一艘外形奇特、顶部装有旋转风扇的钢管船。

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Stainless steel customers demanding stainless steel in a more finished state such as tubing, pipe, and cold-rolled strip from rerollers and tube makers.

不锈钢客户要求不锈钢的处理尽善尽美，如管子，来自于制管者及再轧机的冷轧带。

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Natural-gas pipelines cannot be used because hydrogen makes the steel tubing brittle and attacks the welds.

ECONOMIST: Tech.view

Cycling's innovations, including spokes, pneumatic tyres, ball bearings, steel tubing and differential gears, were soon borrowed by the motor industry.

ECONOMIST: How Robert Penn found himself the perfect two-wheeler

The structure is made of steel tubing and the body of aluminum.

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